skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
Home|Site Index|Search|Guides|Contacts|eBusiness|eBiz alerts|News|Help
Assignments on the Web > Patent Query
Patent Assignment Abstract of Title
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Total Assignments: 2
Patent #:
Issue Dt:
10/16/1984
Application #:
06370137
Filing Dt:
04/22/1982
Inventor:
ENGELBERT CIGANEK
Title:
OCTAHYDRO-4A,7-ETHANO- AND -ETHENO-BENZOFURO(3.2.E)ISOQUINOLINE DERIVATIVES HAVING ANALGESIC, NARCOTIC ANTAGONIST AND ANOREXIGENIC PROPERTIES
Assignment: 1
Reel/Frame:
004288/0684Recorded: 08/13/1984Pages: 1
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
04/19/1982
Assignee:
A DE CORP.
WILMINGTON, DELAWARE
Correspondent:
DIANNE B. ELDERKIN
LEGAL DEPT.
E. I. DU PONT DE NEMOURS & CO. (INC.)
WILMINGTON, DE 19898
Assignment: 2
Reel/Frame:
005955/0010Recorded: 11/14/1991Pages: 19
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
04/26/1991
Assignee:
Correspondent:
E.I. DU PONT DE NEMOURS AND COMPANY
STE. 1001
2001 JEFFERSON DAVIS HIGHWAY
ARLINGTON, VA 22202

Search Results as of: 06/17/2025 05:45 PM
If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6
Web interface last modified: August 25, 2017 v.2.6
| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT